Rajneesh Foundation International
Followers of an obscure Indian guru made national headlines in the 1980s when they virtually took over a small Oregon town and renamed it Rajneeshpuram after their founder. Bhagwan Shree Rajneesh, their leader, was deported in the mid-1980s after he was indicted for immigration fraud. He died a few years later.

Posse Comitatus
The Posse, which opposes authority of any kind, is a right-wing paramilitary movement that has spawned various smaller extremist groups. Member Gordon Kahl attracted widespread attention to the Posse in 1985 when he shot two lawmen and was himself killed in a shootout with officers four months later. The Kahl episode presaged a series of confrontations and sieges between the government and paramilitary groups that refused to recognize its authority.

Lyndon LaRouche's Political Network
Lyndon H. LaRouche Jr. founded the National Caucus of Labor Committee in 1968 as a left-wing Marxist sect in Manhattan but switched its ideological stance to the far right in the 1970s. In the '80s, LaRouche led a worldwide organization based in Leesburg, Va., teaching apocalyptic doom and conspiracy theories. A perennial presidential candidate, LaRouche ran a little-noticed campaign in 1992 from federal prison, where he was serving five years for fraud and conspiracy. He was paroled in 1994.

MOVE
Vincent Leapheart founded the radical back-to-nature group called MOVE in the 1970s. It had a rocky relationship with city officials in Philadelphia, and 15 members served prison terms in the 1980s on various charges. The disputes culminated in 1985 when Philadelphia police dropped a bomb on the group's communal row house, killing 11 people, including the founder, who had changed his name to John Africa. The resulting fire left more than 200 Philadelphia residents homeless. Still in existence, MOVE members say it is a gentle, familial group hounded by a racist system.